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            Test Evaluation of Retrofit Collison Post Design for Legacy Locomotives
      

      
  Document Series
              Technical Reports


      
  Author
          Federal Railroad Administration


      
Report Number
              DOT/FRA/ORD-21/34

  Office
              RDI-22


      Subject
                    Crashworthiness - Passenger Equipment


      
  Keywords
              Crashworthiness, collision post, freight locomotives, S-580


      

      
      
              
                  
      
              
  Document
              Legacy Loco Collision--A.pdf (5.51 MB)

      
              Legacy locomotives, such as narrow-nose designs manufactured before 1990, were not required to comply with crashworthiness requirements. Therefore, these locomotives afford less crew protection in case of train collisions. In this  project, collision posts that offer additional crash protection were fabricated and installed on a legacy locomotive underframe. Structural tests conducted with the upgraded underframe using appropriate loads showed that the maximum  stresses were within acceptable limits. Further, the measured strains correlated well with the expectations from design simulations, thereby validating the robustness of the retrofit design.
      
            
      
      
              Last updated: Friday, December 10, 2021 U.S. DEPARTMENT OF TRANSPORTATION

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